The
Fallout Script Extender, or FOSE for short, is a modder's resource that
expands the scripting capabilities of Fallout 3. It does so without
modifying the Fallout3.exe or the G.E.C.K. files on disk, so there are
no permanent side effects.

This is a stable and supported release of FOSE, so modders are free to release mods based upon it.

FOSE v1.2 beta2 provides support for:Retail
DVD and Steam builds 1.0.0.15, 1.1.0.35, both versions of 1.4.0.6,
1.5.0.22, 1.6.0.3 and 1.7.0.3.The no-gore version of 1.7.0.3 released
in Germany is also supported.The GOG version is also supported.GECK builds 1.1.0.36 and 1.5.0.19.Current beta version: v1.3 b2
Download: http://fose.silverlock.org/beta/fose_v1_3_beta.7zFOSE does not support:Retail DVD and Steam build
1.0.0.12 (the original pre-patch version of Fallout) - if you have this version, update to 1.7.0.3Russian DVD version of Fallout 3 (it uses Starforce
encryption on Fallout3.exe)Direct2Drive version of Fallout 3
(it encrypts the Fallout3.exe) - download the game from Steam if you would like to use a digital download servicePolish DVD version of Fallout 3 (it uses SafeDisc copy protection on Fallout3.exe)*
FOSE is incompatible with Windows Live, so when running via
fose_loader.exe, Live will be disabled. As Live operates as a
cheat-detection tool similar to Punkbuster or VAC, FOSE's in-memory
modifications are inherently incomptible. Don't worry about being
banned or anything like that, everything still works when running
Fallout normally. To download DLC, launch fallout3.exe directly instead
of via the loader. After downloading the DLC, you will then need to
move the DLC files in to the Fallout data folders to use them like any
other mod.